A boost state of an upstream side brake fluid pressure producing device that boosts a braking operation force of a braking operation member and produces a fluid pressure in a master cylinder is adjusted according to a refluxing brake fluid characteristic o...

An outflow of working fluid from a master cylinder to a brake cylinder is prevented when a brake pedal is not operated. Two pressure chambers 72, 70 of the master cylinder 62 and brake cylinders 42FL, FR provided respectively for front left and right wheel...

The subject invention provides an improved hydraulic braking system and a hydraulic pressure intensifying apparatus (10) for use in the braking system. The braking system includes a master cylinder assembly (26, 126), with the intensifying apparatus (10) i...

A braking system 20 including a brake actuator 32 which is moveable by pressurised hydraulic fluid in a first direction A, against a restoring force, to move a brake applying member 27 to apply a braking force to a member 26 to be braked, a master valve 22...

The cylinder has a body pierced with a bore in which pistons defining chambers slide. Tight joints with U section are housed in a groove which is arranged in the body, and a supply orifice is arranged in the body. Machining holes (18, 19) communicate a hyd...